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Aug. 2, 1938. Re. 20,815

RECORDING DEVICE FOR LIQUID DISPENSING APPARATUS W. M. CARROLL Original Filed 001:. 1

, 1928 16 Sheets-Sheet l INVENTOH. 9) M. CARROLL.

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ATTORNEY Aug. 2, 1938.- I w. M. CARROLL RECORDING DEVICE FOR LIQUID DISPENSING APPARATUS 1e Sheets-Shed 4 mm M Mm W ATTORNEY,

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ATTORNEY Aug. 2, 1938. w. M. CARROLL Re. 20,815

RECORDING DEVICE FOR LIQUID DISPENSING APPARATUS Original Fil'ed Oct. 1, 1928 16 Sheets-Sheet 6 ATTORNEY Aug. 2, 1938. w. M. (DZARROLL RECORDING DEVICE FOR LIQUID DISPENSING APPARATUS Original Filed Oct. 1, 1928 16 Sheets-Sheet 7 /N 5 N TOR.

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ATTORNEY Aug. 2, 1-938. w. M. CARROLL RECORDING DEVICE FOR LIQUID DISPENSING APPARATUS Original Filed on. 1, 192a 16 Sheets-Sheet 8 M we WM A TTOR NE W Aug. 2, 1938. w. M cARhoLL 20,815

RECORDING DEVICE FOR LIQUID'DISPENSING APPARATUS Original Filed Oct. 1. 1928 i6 Sheets-Sheet ww MEN i i/ m m T 36 m RN m 3 :52 g m: mm w m wk IN $3 3 E m 3N mm; 2 NW 3 NW NRN $2: S- mm 2 $2508 52 a s u w J NM m w 7 V 7 0 W7 3 N n E w. m, a 1

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Aug-2, 19 38. I w. M. CARROLL ,EBCORDING DEVICE FOR LIQUID DISPENSING A?PARATUS 1e Sheets-Sheet 1o Originil Filed Oct. 1, 1928 /N VE/V TOR.

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ATTOIRNEY Aug. 2, 1938. w. M. CARROLL RECORDING DEVICE, FOR LIQUID DISPENSING APPARATUS Original Fiied Qct. l, 1928 16 Sheets-Sheet l1 INVENTOR. 9w. M. CARROLL.

ATTORNEY Aug. 2, 1938. w. M- CARROLL Re. 20,315 RECORDING DEVICE FOR LIQUID DISPENSING APPARATUS Original um on. 1. 1928 16 Sheets-Sheet 12,

ATTORNEY Aug. 2, 1938. w. M. CARROLL nacoanme DEVICE FOR LIQUID DISPENSING APPARAI'II'US 16 Sheets-Sheet 13 Original Filed Oct. 1, 1928 V'NTOR. M. CARROLL.

ATTORNEY Aug. 2-, 1938. w. M. CARROLL nzconnme DEVICE. FOR LIQUID DISPENSING APPARATUS Filed 001:. 1, 1928 16 Sheets-Sheet 14 Original MILLS 0R TEN 7H5 //VV/VTOH. I gm M. CARROLL.

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ATTORNEY -Aug. 2, 1938. w. M. CARROLL RECORDING DEVICE FOR LIQUID DISPENSING APPARATUS Original iled Oct. 1, 192B 16 Sheets-Sheet 16 /Nl/f/VT0H WM. CARROLL.

ATTORNEY Reissue'd Aug. 2, 1938 UNITED STATES RECORDING DEVICE FOR LIQUID DISPENS- ING APPARATUS William M. Carroll, rm mm, ma, assignor, by mesne assignments, to The Wayne Pump Company, Fort Wayne, lnd., a corporation of Maryland Original No. 1,940,656, dated December 19, 1933,

Serial No. 309,557, October 1, 1928. Applicationi'or reissue November 21, 1934, Serial No.

This invention relates to a recording device for a liquid dispensing apparatus, such as a gasoline measuring pump, and it is designed for the purpose oi accurately recording the amount of and the money value of liquid dispensed by said apparatus.

It has been proposed heretofore to provide liquid dispensing apparatus with recording devices but, for the most part, at least, these devices have been controlled ,by the piston rod or other movable part of the pumping mechanism and recorded the movements of the pump rather than the amount of liquid discharged and in the event the pump did not discharge a mu measure of liquid due to leaky pistons, leaky valves or the like the record preserved by such a device would be inaccurate.

One'object oi the present invention is to provide a liquid dispensing apparatus with a recording device which will preserve an accurate record relating to the liquid actually discharged by that apparatus.

A further objector the invention is to provide such a recording device which will compute and record the money value of the liquid discharged at a selected price per unit; and which will effect such computation at prices per unit including fractions of a cent.

A further object of the invention is to provide a recording device which will be actuated by a spring motor, the spring of which will be placed under compression by the pumping mechanism but the operation of which will be controlled by the device which controls the discharge of liquid from the measuring apparatus.

A further object o! the invention is to provide a liquid dispensing apparatus comprising twin measuring receptacles which are alternately iilled and emptied, with a recording device which will be operated on the opening of the dlschage line vof either measuring receptacle to make a record of the quantity and money value of the liquid discharged from that receptacle.

A further object 01 the invention is to provide such ap apparatus with a spring motor especially adapted to control the recording mechanism. A further object of the invention is to provide such a recording mechanism with means for issuing, at the end 01' each delivery of liquid, a ticket bearing the data relating to that transaction and to preserve a separate record of the details of each transaction and of the total of several transactions.

Other objects of the invention will appear as the apparatus is described in detail. 1

44 Claims. (Cl. 221-95) 7 portion of the connecting mechanism between the motor and the pump; Fig. 3 is a side elevation, partly in section, of the upper portion of a dispensing apparatus embodying my invention;

, Fig. 4 is a sectional view of the mechanism for controlling the filling and emptying of the measuring receptacles; Fig. '5 is a side elevation, partly in section, of the spring motor; Fig. 6 is a detail view of the pawl and ratchet connection between the pump operating mechanism and the spring motor, showing the pawl in operative position; Fig. '7 is a similar view showing the pawl in its inoperative position; Fig. 8 is a plan view of the spring motor vand the connecting devices therefor; Fig. 9 is a sectional detail view, on the line 9-9 of Fig. 8, showing the pawl and ratchet mechanism for connecting this spring motor with the pump operating mechanism; Fig. 10 is a sectional detail view, on the line Ill-Ill of'Fig. 8, showing the pawl and ratchet mechanism for connecting the spring motor with the registering device; Fig. 11 is a section taken on the line ll-ll of Fig. 10; Fig. 12 is a side elevation of a casing enclosing the registering and printing mechanism; Fig. 13 is a side elevation of that side of said casing opposite that shown in Fig. 12; Fig. 14 is a sectional view takenjust inside --the casing showing the registering mechanism in elevation; Fig. 15 is a side elevation, partly in section, of the printing mechanism; Fig. 16 is a sectional view taken on the line iG-IG of Fig. 14; Fig. 17 is a sectional view taken on the line il-ll of Fig. 14; Fig. 18 is a horizontal sectional view taken on the line l8-l8 of Figs. 14 and 15;

'Fig. 19 is a horizontal sectional view taken on the line l9,l9. of Figs. 14 and 15; Fig. 20 is an enlarged sectional view of the registering mecha nism taken on the line 20-20 of Fig. 16; Fig. 21 is a detail view of the actuating device; Fig. 22 is a section taken on the line 22-22 of Fig. 21; Fig. 23 is a section taken on the line 23-23 of Fig. 21; Fig. 24 is a section taken on the line 24-24 of Fig 21; Fig. 25 is a section taken on the line 25-25 of Fig. 21; Fig. 26 is a longitudinal sectional view of the price selecting device; Fig.

' 27 is a section taken on the. line 2l-2l of Fig.

26; Fig. 28 is a section taken on the line 28-28 of Fig. 26; Fig.29 is an end elevation of the set ting dials for the price selecting device; Fig. 30 is a detail view of the intermediate gears for the resetting mechanism of the price selecting device;

from the spirit of the longitudinal sectional view of the transfer mech anism for the total counter; Fig. 35 is a transverse sectional view taken on the line 35-45 of Figs. 33 and 34, showing the gears in mesh; Fig. 36 is a transverse sectional view taken on the line 36-36 of Fig. 34; Fig. 37 is a longitudinal sectional view of the transaction counter; Fig. 38 is a longitudinal sectional view of the transfer mechanism for the transaction counter; Fig.

39 is an end elevation of the paper feeding rollers for the printing mechanism; Fig. 40 is an end elevation of the consecutive number counters and their actuating pawl; Fig. 41 is a detail view of the transfer gear for the cents counter; Fig. 42 is a detail view of the transfer gear for the mills counter; Fig. 43 is a facsimile of the ticket; and Fig. 44 is a facsimile of a portion of the record.

In these drawings I have illustrated one embodiment of my invention and have shown the same in connection with a gasoline dispensing pump comprising twin measuring receptacles to be alternately filledand emptied. It'will beunderstood, however, that the mechanism may take various forms and may be used with dispensing apparatus of various invention. The dispensing apparatus here illustrated comprises a vertical standard or housing at the upper end of which are mounted two measuring receptacles, 2 and 3, which are here shown in the form of glass cylinders of identical size, each having a. capacity of one gallon or other suitable in the lower portion of the standard or housing is a pump I which may be operated in any suitable manner. In the present instance it is motor driven and is connected by a pitman 9 with an electric motor Ill, through suitable reducing gearing contained within the casing The inlet of the pump is connected by a pipe l2 with a suitable source of liquid supply, such as an underground reservoir, and the outletof thepump is connected by 'a pipe l2a. with an inlet conduit l3 formed in the casing I4 constituting the upper part of the standard and on which the twin receptacles 2 and 3 are mounted. This inlet conduit I3 is provided with branches l5 and I6 leading respectively to valve chambers 11 and I3 which are connected with the respective measuring receptacles by passageways l3 and 20. The valve chambers are also connected at their inner; ends with an outlet conduit 2| the outer end of which is connected with a discharge pipe 22. Mounted in each valve chamber is a piston valve, 23 and 24, the two valves being rigidly connected by a rod 25 so that they will move in unison and being so arranged that 'when moved to the limit of their movement in one direction .the measuring receptacle 2 will be connected with the discharge pipe and the measuring receptacle 3 will be connected with the inlet or supply pipe. When the valve is shifted to the other limit of its movement the measuring receptacle 2 will be connected with the inlet or supply pipe and the measuring receptacle 3 will be connected with the discharge kinds without departing casing I4.

the measuring receptacles.

pipe. Arranged between the two. passageways l9 and 20 is a cylinder 26 having mounted therein a double ended piston 21 the ends of which are exposed to the liquid in the respective passageways. Whcn that receptacle which is connected with the supply pipe is filled the continued operation of the pump will subject the liquid to pres sure sufficient to shift the piston 21 lengthwise of the cylinder 26; Connected with the piston 21 is a crank arm 28 rigidly secured to a shaft 29 which extends through the outer wall of the casing l4 and is connectedwith the valves 23 and 24 in such a manner as to shift those valves. As here shown, an arm 30 is secured to the outer end of the shaft 29 and is connected withfa second arm 3| which is connected with an arm 3| a rigidly secured "to a shaft 32 also extendingthrough the wall of a casing and havingsecured to its inner end an arm 33 which is connected with a valve rod 25. The arms 30 and 3| constitute in effect a toggle and the arm 3| is longitudinally movable in a part 34 which is connected with the spring will be compressed and when the arms are moved beyond their alined positions the spring will expand to complete the movement of the arms thus completely shifting the valves. This particular dispensing apparatus forms no part of the present invention except in so 'far as it enters into combination with the recording mechanism and the controlling devices therefor, and therefore it need not be described in detail. A full description of adispensing apparatus of this type will be found in Patent No. 1,612,488, granted December 28, 1926 to Carbanaro.

The recording apparatus may be mounted in any suitable relation to the dispensing apparatus and, in the present instance, it is arranged in the upper part of the housing-I which is below the This recording mechanism comprises an actuating device to which a predetermined movement is imparted uponeach operationof the valves which control the filling and emptying of In the present instance this actuating device comprises a shaft 34 (see Figs. 14 and 16), having secured thereto a gear 35 and a ratchet wheel 36 which is engaged by -a pawl 31 to hold the shaft against reverse movement. Movement is imparted to this actuating device from amotor, preferably a spring motor, the operation of which is controlled by the valve reversing mechanism so that a predetermined movement will be imparted to the actuating device on the discharge of each measured unit of liquid. In the particular form of appa- 'ratus here illustrated, the motor comprises a helical spring 33 confined in a cylindrical casing 39 and acting on one end of a rack bar 40. The rack bar has an extension or stem 4| extending into the casing 39 and about which the spring is mounted, and also has an annular shoulder 42 against which the outer end of the spring abuts. Meshing with the raclr'4li isja pinion 43 rotatably mounted on a shaft 44 carried by a supporting structure or frame 45 which'is mounted on the housing Rigidly secured to the pinion 43 is a disk 46 having mounted thereon a pawl 41 adapted to engage a ratchet wheel 48 which is rigidly secured to the shaft 44 so that the rotation of the ratchet wheel 48 will cause the same to pick up the pawl and disk and rotate the pinion 43 in a direction to compress the spring 38 of the motor. Rigidly connected with the shaft and with the ratchet wheel 88 is a second ratchet wheel 89 to which movement is imparted from the pumping mechanism. Ashere shown, two pawl carrying arms, 58 and are mounted for pivotal movement about the axis of the shaft 88, extend at an angle one from the other and have mounted thereon pawls 52 and 53 which engage the ratchet wheel 89. The pawl carrying arm 58 is connected by a link 58 with one arm 55 of the three arm lever. The pawl carrying arm 5| is connected by a link 58 with a second arm 51 of said three arm lever. This three arm lever is pivotally mounted at 58 on the frame 85 and the arms 55 and 51 are so arranged with relation to the pawl carrying arms that when the lever is moved in one direction one pawl will actuate the ratchet wheel and when the lever is moved in the other 'direction the other pawl will actuate the ratchet wheel, thus causing a practically continuous movement to be'imparted to the ratchet wheel and to the pinion which is connected therewith. The third arm 59 of the three arm lever is connected by a pitman 58 with a link 8| carried by a pivoted arm 52 and-connected with one end of a lever 83 which is pivotvided with means for retaining the same in either v'ul ally mounted. between its ends, as shown at 58. and is connected at its other end with the pitman 8 of the pump operation mechanism. In this manner the ratchet wheel 89 is operated continuously while the pump is in operation.

When the rack bar 88 has beenmoved to the desired position and the motor spring compressed to the desired extent the ratchet wheel 88 is disconnected from the pinion 83, thus permitting the pump to continue its operation without affecting the spring motor. This is accomplished in the present instance by providing the pawl 81 with a tall 85 carrying a roller 55 arranged to engage a yicldable stop 81 which is so positioned that it will engage the roller of the pawl when the ratchet wheel 89 has been moved a distance sumcient to impart the desired movement to the rack bar. This contact of the stop with the roller on the pawl will move the pawl to its inoperative position, .thus permitting the ratchet wheel 88 to rotate with relation thereto. Preferably the pawl 81 is proits operative or inoperative position. To this end I have here shown an arm 58 pivotaliy mounted on the .disk 85 and having at its free end a laterally extending part 58 carrying extends into a recess or seat 1| on the end of the pawl 81. A spring 12 is connected with the arm 88 and with the tail 55 of the pawl and is so arranged that when the pawl is moved from one position to the other the point of connection bc tween the pawl and the arm 88 will be moved across the line of the spring and the spring will thus retain the. pawl in the position to which it has been moved.

a Means are also provided for retaining the rack bar in the position to which it has been moved, against the action of the spring 38,'- and this means is so arranged that it will engage, the rack bar just before the pinion is disconnected from the pumping mechanism. As here shown, the locking means comprises a dog 13 pivotally mounted at one side of the rack bar and acted upon by a spring 18. The nose of the dog will ride upon the edge of the rack bar until the end of the bar passes the same and will then spring into engagement with the .recess in the end of the bar and lock the same against movement. This locking device or dog is controlled by the filling and emptying mechanism for the measuring receptacle and I have here shown a trip a roller 18 which finger 15 arranged to engage the dog and move the same into an inoperative position. This trip finger is connected with an actuating arm 18 which in turn is connected by a pitman 11 with one arm of a bell crank lever 18, the other arm of which is connected with one arm of a toggle 18, the other arm of the toggle being rigidlysecu'red to the shaft 29. Consequently whenever the shaft 29 is actuated to shift the controlling valves the dog will be moved to its inoperative position and the rack bar released for. operation by the spring 38. The movement of the rack bar by the spring rotates the pinion 83 and disk 88in a reverse direction and brings the pawl 81. to such a position that it will be engaged by a projection or lug 88 carried by the actuating bar and thus forced again into contact with the ratchet wheel 88. The pawl is preferably provided with a roller 8| with which the lug 88 contacts. The ing is so arranged that it will engage and operate the pawl just as the rack bar completes its movement, thus reestablishing. the connection between the pinion 83 and the pumping mechanism and causing the spring. 38 to be again placed under compression.

The rack bar also meshes with a pinion 82 rotatably mounted on a shaft 83 journaled in suitable bearings on 'the supporting structure 85. Rigidly connected with this pinion 82 is a ratchet wheel 88, here shown as a one tooth ratchet wheel. Rigidly mounted on the shaft 83, adjacent to the ratchet wheel 88, is a disk 85 which carries a pawl 85 which engages the ratchet wheel 88, the arrangement being such that when the pinion 82 and ratchet wheel 88 are actuated by the rack bar, under the influence of .the. spring 38, the ratchet wheel will engage the pawl 86 and impart rotation to the disk 85. Rigidly secured to the disk 85 is a gear 81 which is connected by a train of gears 88 with the actuating gear 35 cf the registeringmechanism. The movement of the rack bar 88 under the influence of spring 38 is so limited that it ,will impart a single complete rotation to the gear 81, and the ratio of the gearing connecting gear 81 with the actuator gear 35 is such that one complete rotation will be imparted to the actuator gear.

Preferably some means is provided to retard the movement of the rack bar by the spring and thus prevent the too rapid operation thereof and the violent contact between the parts. As here shown, I have utilized a dash pot consisting oi. a fluid cylinder 89 in which is mounted a piston 98 connected by a piston rod ill with a lug 92 on the rack bar, the arrangement being such that the fluid will escape slowly past the piston and thus retard the movement of the rack bar.

The recording mechanism comprises two separate registering devices, one of which registers items relating to each individual transaction and the other of which registers a total of the items relating to all transactions within any desired period of time. The transaction register is indicated as a whole by the letter A" and the total register is indicated as a whole by the letter B. Both the registers are operated simultaneously by the same actuating device so that the same record of each transaction is accumulated on each register. The transaction register is reset to zero after each transaction while the total register is reset to zero only at such times as it may be desired by the person in control of the apparatus. As has been. explained, the actuator shaft 38 is rotated by the spring motor through one complete rotation upon the discharge of each i measured quantity of liquid. Rigidly secured to this shaft are three mutilated gears or actuating segments", 94 and 96. The segment 99 being the mills actuator, the segment 96 the cents actuator and the segment 96 the tens actuator. Each of said segments comprises a portion of a forty tooth gear and has seven teeth. The several segments are arranged in staggered relation one to the other, that is, they occupy difl'erent radial positions so that they will function sue-- cessively. The mills segment will operate first, then the cents segment, and then the tens segment, the functioning of the three segments re-- quiringa rotation of abouttwo hundred degrees. Interposed between the actuator segments and the two registering devices A and 2B is a price selecting device by means of which the predetermined movement of the actuator may be caused to impart movement to the counter gears of the registering device according to a predetermined price per unit. As here shown this price selecting device comprises three mutilated gears or toothed segments 96, 91 and 96, rotatably mounted on a shaft 99. Each of the selector seg- 'ments, (see Figs. 26 and 27), comprises a portion of a forty tooth gear andhas eight operating teeth arranged to be engaged by the teeth of the corre-- sponding actuator segments. Each selector gear also has a secondset of teeth I96 adapted to be engaged by a yieldable pawl IOI which serves to properly aline the segments and hold the same against accidental displacement. Rigldly secured to the respective selector gears are full forty tooth gears I92, I96 and Ill, which are connected through intermediate gear units with the counter gears of the respective registers. It may be here noted that the transaction register A (Fig. 37), comprises a mills counter gear I96, a cents counter gear I66, a tens counter gear I", and such additional counter gears I69 as may be necessary to accumulate the computation thereon relating to any single transaction. The total counter B comprises a mills counter gear I99, a-cents counter gear III, a tens counter gear III and such additional counter gears II2 as may be necesary to accommodate the total of the several transactions. The gear connections between the full tooth selector gears and the corresponding counter gears may be of any suitable character but, in the present instance, I have employed a flexible gear unit which will permit the counter gears to be reset to zero without displacing the selector gears. As here shown, each gear unit comprises a gear III which meshes with the corresponding full tooth selector gear. Rigldly secured to the gear III is a ratchet wheel Ill, (see Figs. 31 and 32), which is engaged by a spring pressed pawl Iii carried by a gear I I6 which meshes with the corresponding counter gear. The arrangement ot the pawl and ratchet wheel is such that when the gear III is actuated by the selector gear the ratchet wheel will pick up the pawl and rotate the gear Ill but when the counter gear is rotated independently of the selector mechanism, in'resetting the register to zero, the pawl will ride over the ratchet lector segments, which are arranged substantially in axial alinement and movement will be trans- .mitted successively to the several counter gears.

part, such as a disk I26.

The selector segments and gears are returned to their initial positions prior to the completion of each operation of the actuating mechanism, the yieldable connection between the-two gears of each intermediate gear unit permitting the actuator gears to turn in a reverse direction without transmitting movement to the counter gears.

Each of the actuator gears 93, 94 and 95, has

rigidly secured thereto a mutilated gear or toothed segment III of shorter radius than the actuator segment. The segments III are arranged in longitudinal alinement one with the other and are radially arranged beyond the last of the actuator segments so that they will function after the actuator segments have all functioned. Each of the segments II! is arranged to engage a corresponding gear II 9 mounted on the shaft H9 and each of the gears H6 is arrangedto engage and actuate a mutilated gear or toothed segment I29 connected with the corresponding selector segments 96, 91 and 99. Rigidly secured to each of the intermediate gears H8 is a toothed wheel I2I which is engaged by a pawl I22 to aline the respective intermediate gears and hold the same against accidental displacement. It will be apparent, therefore, that after the several actuator segments have functioned to impart movement through the selector segments to the counter gears the resetting segments III of the actuator gears to rotate the selector segments in a reverse direction and thus restore the same to their initial positions.

- The price per unit upon which the computation is based may be varied by shifting the positions of the actuator segments 96, '91 and 99, with relation to the corresponding segments I29. The resetting mechanism being such that the resetting segments I26 will be returned always to the same position, it will be apparent that if the selector segments are shifted with relation thereto a difl'erent number of teeth on the selector segment may be caused to be engaged by the actuator segments, and consequently a difierent amount of movement imparted to the counter gears. As here shown, (see Fig. 26), the several selector segments and the corresponding resetting segments l2l'are rigidly secured to telescoping sleeves I29 and I24. Each pair of sleeves, carrying the corresponding selector segment and resetting segment, are normally held against rotation withrelation one to the other but are rotatable with relation to each other pair of sleeves. These sleeves project beyond the side of the casing enclosing the mechanism and each sleeve I29 has secured thereto a laterally extending part, such as a disk I26, and each sleeve I24 has secured thereto a laterally extending Each pair of disks I25 and I26 are adjustably connected one to the other, this being accomplished in the present instance by providing each disk with an annular series of holes I21 and I29 adapted to receive a screw I29. The holes in each pair of disks are so arranged that very flne adjustments may be secured by bringing selected openings in the two disks into line one with the other and then iriserting the screw I29 to rigidly secure the disks in adjusted positions. It will be apparent that the adjustment of the disks will also adjust the selector disks is made only when theprice per 

